DO you think this will last! or is it too much!!!!!!!!
Give me your experiences or input!

1995 Trans Am
355 CID, was 8lbs just switched to 12lbs ATI P600B
JE pistons, (9.6 to 1)
Sotck crank and rods, balanced rotating assembly
cc 218/230/114, Ported and polished stock heads
MSD6AL, Walboro 340, with 42lbs injectors, custom exhaust!
weight of 4000lbs
best time, 11.71 at 117, 60ft 1.82, on drag radials!
Never rev past 6000rpm

Custom tune, but no dyno or wideband o2, none available to me, closest 500 miles, used datamaster and tunercat to program via email with tuner. just added 12lbs pullies, think she'll hold! I'm at sea level, with an A4, with a 3000 Stall, full BMR suspension! I was hoping for some real low 11"s, I figure it should be fine if I don't rev past 6000rpm and with the compression dropped to 9.5/9.6 to 1. I only have access to 92 octane as well!

Let me know what you think?

 

I don't see why it would not hold. How much hp are you thinking your combo will make?

 

I would say you really need to look at the wideband O2 readings and see how your fuel pressure and injectors are doing higher up in the RPM band. Without a proper setup on those things a leaning out can spell bad news real fast and crush the motor hard. Those were the things I looked at when I setup my motor, and can say that is also the reason why the whole thing lasted so long. I would just say its cheaper in the long run to make sure now as opposed to wishing you did when the motor goes. What is $100-400 bucks in getting a good tune now, then $4000+ in a rebuild later. Hope all works out, Good Luck.

 

I figure around 500ish, no dyno around here to clarify it though!
But based on weight on car and time already run, and must be close to that number with the 8lb pullies, so with the 12lbs pullies it might be around 550ish!

 

Buying a scanmaster and add some xylene into the gas might give it a longer life. The stock rods are supposedly only good to 450hp. so you better hope your not a 500+rwhp

 

Sorry didn't see the scanmaster in the sign. But aren't your injectors near 100% duty cycle?

 

I mentioned in my earlier post that I have 42lbs injectors, just forgot to update my profile!

 

I dunno.....I dyno'd at about 490 RWHP on stock rods and a stock crank. It did OK.

No detonotion, no problems.....for the most part.

 

2 core intercooler! Can it handle this setup, or do I need to change to the ATI 3 core or the twin setup?

 

I got that info from some site selling chevy crate motors. Not saying people haven't taken the stock rods up to 500rwhp. But that is def. the weak point before the crank. The detonotion problems may not be around now but if you get bad gas. He only can get 92. I would just hate to blow up the motor I built to take the abuse of the blower. The three core intercooler would be a better way because it would make more power that your looking for and probably drop the boost.